Version 5.2.3

Released on 2023-02-23.


If you are upgrading a cluster, you must be running CrateDB 4.0.2 or higher before you upgrade to 5.2.3.

We recommend that you upgrade to the latest 5.1 release before moving to 5.2.3.

A rolling upgrade from 5.1.x to 5.2.3 is supported. Before upgrading, you should back up your data.


Tables that were created before CrateDB 4.x will not function with 5.x and must be recreated before moving to 5.x.x.

You can recreate tables using COPY TO and COPY FROM or by inserting the data into a new table.

Table of Contents

See the Version 5.2.0 release notes for a full list of changes in the 5.2 series.


  • Fixed an issue that caused correlated sub-queries to fail if using columns in the filter clause that were otherwise not selected.

  • Fixed an issue that caused correlated sub-queries to fail with an IllegalStateException when the outer query contained multiple joins. An example

    CREATE TABLE a (x INT, y INT, z INT); // tables b, c, d created as a
      (SELECT 1 WHERE a.x=1 AND b.y=1 AND c.z=1)
    FROM a, b, c, d;
    IllegalStateException[OuterColumn `y` must appear in input of
  • Fixed an issue that caused DROP FUNCTION to throw a ColumnUnknownException instead of an IllegalArgumentException justifying why a function cannot be dropped.

  • Updated to Admin UI 1.24.3, which fixed a compatibility issue where graphs have not been working on the “Overview” page with CrateDB 5.2, and added syntax highlighting for functions added in CrateDB 5.2: MIN_BY, MAX_BY, HAS_DATABASE_PRIVILEGE, PARSE_URI, and PARSE_URL.